Numerical simulations of the current channeling effect on MT responses due to shallow conductive structures

Autores
Chao, Gabriel; Osella, Ana Maria
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
MT data obtained at an alluvial valley in Argentina showed a strong telluric current channeling along its axis. This effect was reflected in the MT curves as a very low response for the TM apparent resistivity for periods longer than 1 s. The cause of this channeling remained unsolved although the existence of shallow conductive structures may be related to this effect. The purpose of this work is to analyze in detail the magnetotelluric response of this kind of structures. The main objectives are to identify the relevant geometrical and electrical features that cause the anomalous TM response and to study the sensitivity of the MT modes to characterize this kind of structures. Starting from a previous 2D TE inversion, we modified the structure in order to reproduce the behavior of the MT curves. 2D and 3D forward modeling of different shallow conductive structures were carried out and synthetic data from related structures were inverted using the 2D RRI code. © 2002 Elsevier Science B.V. All rights reserved.
Fil: Chao, Gabriel. Universidad de Buenos Aires; Argentina
Fil: Osella, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Materia
2d Forward Modeling
2d Inversion
Current Channeling
Magnetotelluric
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/75507
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/75507
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Numerical simulations of the current channeling effect on MT responses due to shallow conductive structuresChao, GabrielOsella, Ana Maria2d Forward Modeling2d InversionCurrent ChannelingMagnetotellurichttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1MT data obtained at an alluvial valley in Argentina showed a strong telluric current channeling along its axis. This effect was reflected in the MT curves as a very low response for the TM apparent resistivity for periods longer than 1 s. The cause of this channeling remained unsolved although the existence of shallow conductive structures may be related to this effect. The purpose of this work is to analyze in detail the magnetotelluric response of this kind of structures. The main objectives are to identify the relevant geometrical and electrical features that cause the anomalous TM response and to study the sensitivity of the MT modes to characterize this kind of structures. Starting from a previous 2D TE inversion, we modified the structure in order to reproduce the behavior of the MT curves. 2D and 3D forward modeling of different shallow conductive structures were carried out and synthetic data from related structures were inverted using the 2D RRI code. © 2002 Elsevier Science B.V. All rights reserved.Fil: Chao, Gabriel. Universidad de Buenos Aires; ArgentinaFil: Osella, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaElsevier Science2003-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/75507Chao, Gabriel; Osella, Ana Maria; Numerical simulations of the current channeling effect on MT responses due to shallow conductive structures; Elsevier Science; Journal Of Applied Geophysics; 52; 2-3; 12-2003; 123-1370926-9851CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0926-9851(02)00244-6info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:34:47Zoai:ri.conicet.gov.ar:11336/75507instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:34:47.742CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Numerical simulations of the current channeling effect on MT responses due to shallow conductive structures
title Numerical simulations of the current channeling effect on MT responses due to shallow conductive structures
spellingShingle Numerical simulations of the current channeling effect on MT responses due to shallow conductive structures
Chao, Gabriel
2d Forward Modeling
2d Inversion
Current Channeling
Magnetotelluric
title_short Numerical simulations of the current channeling effect on MT responses due to shallow conductive structures
title_full Numerical simulations of the current channeling effect on MT responses due to shallow conductive structures
title_fullStr Numerical simulations of the current channeling effect on MT responses due to shallow conductive structures
title_full_unstemmed Numerical simulations of the current channeling effect on MT responses due to shallow conductive structures
title_sort Numerical simulations of the current channeling effect on MT responses due to shallow conductive structures
dc.creator.none.fl_str_mv Chao, Gabriel
Osella, Ana Maria
author Chao, Gabriel
author_facet Chao, Gabriel
Osella, Ana Maria
author_role author
author2 Osella, Ana Maria
author2_role author
dc.subject.none.fl_str_mv 2d Forward Modeling
2d Inversion
Current Channeling
Magnetotelluric
topic 2d Forward Modeling
2d Inversion
Current Channeling
Magnetotelluric
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv MT data obtained at an alluvial valley in Argentina showed a strong telluric current channeling along its axis. This effect was reflected in the MT curves as a very low response for the TM apparent resistivity for periods longer than 1 s. The cause of this channeling remained unsolved although the existence of shallow conductive structures may be related to this effect. The purpose of this work is to analyze in detail the magnetotelluric response of this kind of structures. The main objectives are to identify the relevant geometrical and electrical features that cause the anomalous TM response and to study the sensitivity of the MT modes to characterize this kind of structures. Starting from a previous 2D TE inversion, we modified the structure in order to reproduce the behavior of the MT curves. 2D and 3D forward modeling of different shallow conductive structures were carried out and synthetic data from related structures were inverted using the 2D RRI code. © 2002 Elsevier Science B.V. All rights reserved.
Fil: Chao, Gabriel. Universidad de Buenos Aires; Argentina
Fil: Osella, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
description MT data obtained at an alluvial valley in Argentina showed a strong telluric current channeling along its axis. This effect was reflected in the MT curves as a very low response for the TM apparent resistivity for periods longer than 1 s. The cause of this channeling remained unsolved although the existence of shallow conductive structures may be related to this effect. The purpose of this work is to analyze in detail the magnetotelluric response of this kind of structures. The main objectives are to identify the relevant geometrical and electrical features that cause the anomalous TM response and to study the sensitivity of the MT modes to characterize this kind of structures. Starting from a previous 2D TE inversion, we modified the structure in order to reproduce the behavior of the MT curves. 2D and 3D forward modeling of different shallow conductive structures were carried out and synthetic data from related structures were inverted using the 2D RRI code. © 2002 Elsevier Science B.V. All rights reserved.
publishDate 2003
dc.date.none.fl_str_mv 2003-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/75507
Chao, Gabriel; Osella, Ana Maria; Numerical simulations of the current channeling effect on MT responses due to shallow conductive structures; Elsevier Science; Journal Of Applied Geophysics; 52; 2-3; 12-2003; 123-137
0926-9851
CONICET Digital
CONICET
url http://hdl.handle.net/11336/75507
identifier_str_mv Chao, Gabriel; Osella, Ana Maria; Numerical simulations of the current channeling effect on MT responses due to shallow conductive structures; Elsevier Science; Journal Of Applied Geophysics; 52; 2-3; 12-2003; 123-137
0926-9851
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/S0926-9851(02)00244-6
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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